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Temperature Pause 7: Unprecedented North Pacific Warming Ends Cool Phase

By Bruce Melton PEMyths, Oceans, Temperature

Whatever it has been that has kept the average global temperature from skyrocketing along with greenhouse gas concentrations is likely being overwhelmed. Of most significance is an unprecedented hot spot in the North Pacific that has probably signaled an end to the current cool phase of the Pacific Decadal Oscillation. Last summer’s global sea surface…

March 23, 2015

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Hardiness Zones Have Shifted North: Climate Change is Here

By Bruce Melton PEShifting Ecology

Five degrees of change—a half zone. Not average temperature; this is based on the average last freeze. I gave a presentation to the Austin Organic Garden Society last month and I remembered USDA had recently come out with new hardiness zone maps. The USDA changes in 2012 are not so much different than the 2006…

April 20, 2012

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Remember, average global warming over land is double the global average because of the cooling influence of our oceans and ice sheets, or 3.56 degrees C in December (6.4 F). and the average over the arctic is four times the global average or 7.12 C (12.8 F). Importantly, the increase in extreme temperature is far greater than the average, and extreme weather increases nonlinearly because of the basics of heat and energy physics, where a little warming does not create a little more extremeness in the weather, it creates a lot more.

Temperature Pause 7: Unprecedented North Pacific Warming Ends Cool Phase

Hardiness Zones Have Shifted North: Climate Change is Here

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